Notes: This hadrosaur, or duck-billed dinosaur, was one of the last of
the dinosaurs. Its most distinguishing feature was its unusually long and
wide duckbill, toothless over half its length -- making its head more duck-like
than most hadrosaurs.

Notes: Although discovered in Connecticut, Anchisaurus is believed to have
ranged all over the world. This small sauropod walked on all four feet,
but could stand on its hind feet when feeding. Its small slender head had
teeth made for shredding leaves.

Notes: The best known of the armored dinosaurs, Ankylosaurus was the last
and largest of the ankylosaurids. Its tough skin was covered with bony
plates, and it could swing its formidably clubbed tail to render a predator
lame. This dinosaur is known from fossils found in Montana and Alberta.

Notes: Anserimimus was really more of an ostrich-mimic than a goose mimic,
as its name translates. Its powerful forelimbs were stronger than other
onithomimids. The arms and hands seem to indicate that Anserimimus dug
for such food as small insects or dinosaur eggs.

Notes: Apatosaurus is one of the best known of all dinosaurs but usually
by its more popular name "Brontosaurus". Its 20-foot-long neck
supported a rather small head and its brain was about the size of a large
apple. Two low ridges ran the length of its backbone, from the base of
its skull almost to the tip of its tail. These spines supported the ligaments
that held up the neck and tail. Apatosaurus' 30-foot whip-like tail was
probably its only means of self-defense. This dinosaur lived in western
North America, where most specimens have been recovered.

Notes: Fragmentary remains of Aralosaurus were discovered in Kazakhstan.
Very little is known of Aralosaurus; however, it did have different teeth
in the upper and lower jaws, which identify it as a hadrosaur.